680308488 has 24 divisors (see below), whose sum is σ = 1842502350. Its totient is φ = 226769472.

The previous prime is 680308459. The next prime is 680308501. The reversal of 680308488 is 884803086.

It can be written as a sum of positive squares in only one way, i.e., 464747364 + 215561124 = 21558^2 + 14682^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×680308488² = 925639277689692288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4724293 + ... + 4724436.

Almost surely, 2^680308488 is an apocalyptic number.

It is an amenable number.

680308488 is an abundant number, since it is smaller than the sum of its proper divisors (1162193862).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

680308488 is a wasteful number, since it uses less digits than its factorization.

680308488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9448741 (or 9448734 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 45.

The square root of 680308488 is about 26082.7239375032. The cubic root of 680308488 is about 879.4988916997.

The spelling of 680308488 in words is "six hundred eighty million, three hundred eight thousand, four hundred eighty-eight".